Loose-pulley and wheel lubricator



J. CORNELIUS.

LOOSE PULLEY AND WHEEL LUBRIGATOB.

(No Model.)

Patented June 2,1885.

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Urvrrn'n d'rnrns Parent Orricn.

JAMES CORNELIUS, OF BROOKLYN, L E-W YORK.

LOOSE-PULLEY AND WHEEL LUQRlCATOR.

EPEOIPICATION forming part of Letters Patent No. 319,073, dated June2,1885.

Application filed October 13, 182-34. (No model.)

To all whom it may concern:

Be it known that I, Janus CORNELIUS, of the city of Brooklyn, in thecounty of Kings and State of New York, have invented a new and usefulImprovement in Oiling Devices for Loose Pulleys and Wheels, of which thefollowing is a specification?reference being had to the accompanyingdrawings.

The invention consists, essentially, in the combination, with an annularoil reservoir or chamber in the hub or box of-a loose pulley or wheel,of one or more oil-ducts leading from said reservoir or chamber to thebore of said hub or boX,and having their outer ends or oritiees near theouter wall of said annular reservoir or chamber. \Vhen the pulley orwheel is in motion, the oil in the reservoir or chamber is caused bycentrifugal force to keep against the outer wall thereof, and by havingthe outer ends or orifices of the oil-duets close or near to the outerwall of said annular reservoir or chamber I insure a sufficient supplyof oil to the axle or shaft or bore of the pulley or wheel until thecontents of the reservoir or chamber are nearly or quite exhausted. Ipreferably employ oil-ducts which are inclined in reverse directions inthe plane of rotation of the pulley or wheel, so that when said pulleyor wheel is rotated in either direction the duct or ducts inclined inone direction will serve to feed oil to the bore and the duct or ductsinclined in a reverse direction serve as a vent or vents. I also havethe inner orifices or ends of the reverselydnclined oil-ducts coincidentorin line lengthwise of the hub, whereby,when the pulley or wheel is atrest and the oil in the reservoir reaches the inner orifices of theoil-ducts,the vent is sealed and leakage of oil prevented. I alsocombine with the oil reservoir or chamber and oil-ducts above describedan annular groove or channel in the bore of the hub at the end thereofand ducts leadingtherefroin to the oil reservoir or chamber, for thepurpose of permitting the return of oil from the bore to the reservoirby centrifugal force.

The above-described features are included in my invention. or

Figure 1 in the drawings is a side view of a loose pulley with myimprovement, the hub being shown in section on the line a: x of Fig.

2. Fig. 2 is an axial section of the same. Fig. 3 is an externallongitudinal view of the bushing in which the oil-reservoir and the feedand vent ducts are formed. Fig. 4 is a transverse section on a largerscale of the polley-hub, the oil-reservoir, and the feed and vent ducts.

Similar letters of reference indicate corresponding parts in the severalfigures.

a is the annular oil reservoir or chamber provided within the hub A ofthe wheel. This might be formed by coring the hub, but is preferablyformed, as represented, by fitting the hub with a bushing, B, in theouter circumference of which is an annular groove, a, (see Fig. 3,) of awidth nearly equal to the length of the hub and bushing, the flangelikeportions b b of the said bushing outside of said groove being fittedtightly into the hub, as shown in Fig. 2.

c c are the oil and vent ducts,the inneroriflees of which are within thebore of the wheel or axle-box, and the outer orifices of which arebrought as close or near to the outer circumference or wall of theannular oil reservoir or chamber as is consistent with the free ingressinto them of oil from the said reservoir or chamber. These duets mightbe made of short pieces of tubing inserted tightly into holes providedfor them in the inner wall of the chamber a; but I prefer to make themby providing projections d on the bushingB and drilling holes in thesaid projections. The d nets 0 e have a tangential inclination in onedirection, and those 0 c a corresponding inclination in the oppositedirection, so that when the pulley rotates in the direction of thearrows (shown in Figs. 1 and 4) the ducts c c act as feed-ducts andthose 0 c as ventducts, and when the pulley rotates in the oppositedirection 0 c are feed-ducts and c c are vent-ducts. There may be a duct0 inclined one way and a duct 0 inclined the opposite way, exactly inline with each other in the same planes of revolution of the hub, sothat their inner orifices meet to form one orifice or are coincident, asshown in Fig. 4; or c and 0 may be situated at some distance apart, asshown in Figs. 2 and 3; but in any case the inner orifices should be allin one straight line along the bore of the hub, and when there areminate in a slight groove, 0, running lengthseveral separate innerorifices all should terwise of the bore, as fully shown in Fig. 2 anddotted in Fig. t. The oil may be supplied to the chamber a through anysuitable supplyopening, as at g, Fig. 2, closed by a screwplug, f, orother suitable means. In the rotation of a loose pulley or wheel the oilcon tained in an annular chamber within the hub is thrown by centrifugalforce toward the outer circumferential wall of the said ehamher, andtherefore when there is very little oil in the chamber it will not passfreely through mere holes in the inner circumferential wall; but byproviding ducts reaching, as described, nearly to the outercircumferential wall a free supply of oil is given while any or verylittle remains. By the inclination of the duct outward toward thedirection in which the pulley is to run the oil is scooped into theducts, and when two ducts or sets of ducts are provided inclinedopposite ways the oil is thus scooped in whichever way the pulley orwheel rotates. By the arrange ment of the two sets ofoppositely-inclined ducts, so that their inner orifices come into one orare in one line lengthwise of the shaft or axle the vent is caused to besealed when the wheel or pulley is at rest with the said inner orificesbelow the level of the oil in the chamber, and hence leakage of oil isprevented. Near each end of the bore of the hub there is formed aroundit an open channel or groove, z, communicating with the reservoir orchamber a near the outer circumference thereof by means of ducts j j,formed by drilling holes through the flange 12 into said grooves orchannels. The oil which is received from the chamber or reservoir athrough the ducts c or 0 between the shaft or axle and the bore of thehub working toward the ends of the bore is received in the channels M,into the bottoms or outer parts of which it is thrown by the centrifugalforce developed by the rotation of the pulley or wheel, and whence bythe same force it is driven through the ducts I 1. The'combination, withan annular oil reservoir or chamber within the hub of a loose pulley orwheel, of one or more oil-ducts leading from said reservoir or chamberto the bore of the hub and having their outer ends or orifices near theouter wall of saidannular reservoir or chamber, substantially as and forthe purpose herein described.

2. The combinatiomwith the hub or box of a loose pulley or wheel and anannular oil reservoir or chamber therein, of oil-ducts leading from thereservoir or chamber to the bore of the hub or box, having their outerends or reeeiving-orifices near the outer wall of said annular reservoiror chamber and inclined in opposite directions in the plane of rotationof the pulley or wheel, substantially as and for the purpose hereindescribed.

3. The combination, with the hub A and annular oil-chamber a therein, ofoil-ducts c c, inclined in opposite directions in the plane of rotationof the hub, having their outer ends or orifices near the outer wall ofthe chamber a, and their inner ends or orifices coincident or in thesame linclengthwise of the hub, substantially as and for the purposeherein de scribed.

4. The combination, with the hub A, containing the annular QiLchamber'a,and having in the bore the circumferential channel t and a duct, j,between the channel i and said chamber a, of one or more oilductsleading from said chamber to the bore, and having their enter ends ororifices near the outer wall ofsaid annular oil-chamber, substantiallyas and for the purpose herein described.

J AMES CORNELIUS.

\Vitncsses:

FREDK. HAYNns, EMIL Sonwnnrz.

